#include "chooselevelscene.h"
#include<QmenuBar>
#include<QPainter>
#include"MyPushButton.h"
#include<QDebug>
#include<QTimer>
#include<QLabel>
ChooseLevelScene::ChooseLevelScene(QWidget *parent) : QMainWindow(parent)
{
    //配置选择关卡的场景
    this->setFixedSize(320,588);
    //设置图标
    this->setWindowIcon(QPixmap(":/res/Coin0001.png"));
    //设置标题
    this->setWindowTitle("选择关卡场景");

    //创建菜单栏
    QMenuBar * bar=menuBar();
    setMenuBar(bar);
    //创建开始菜单
    QMenu * startMenu=bar->addMenu("开始");
    //创建退出的菜单项
    QAction * quitAction=startMenu->addAction("退出");
    //点击退出 实现退出游戏
    connect(quitAction,&QAction::triggered,[=](){
        this->close();
    });
    //返回按钮
    MyPushButton * backBtn=new MyPushButton(":/res/BackButton.png",":/res/BackButtonSelected.png");
    backBtn->setParent(this);
    backBtn->move(this->width()-backBtn->width(),this->height()-backBtn->height());
    //点击返回
    connect(backBtn,&MyPushButton::clicked,[=](){
       //qDebug()<<"点击了返回按钮";
       //告诉主场景，我返回了，主场景要监听ChooseLevelScene的返回按钮

       //延时返回
       QTimer::singleShot(500,this,[=](){
           emit this->chooseSceneBack();
       });
    });

    //创建选择关卡的按钮
    for(int i=0;i<20;i++)
    {
        MyPushButton * menuBtn=new MyPushButton(":/res/LevelIcon.png");
        menuBtn->setParent(this);
        menuBtn->move(25+i%4 * 70,130+i/4*70);

        //监听每个按钮的点击事件
        connect(menuBtn,&MyPushButton::clicked,[=](){
            QString str=QString("您选择的是第%1关").arg(i+1);

            qDebug()<<str;

            //进入游戏场景
            this->hide();//将选关场景隐藏掉
            play=new PlayScene(i+1);
            play->show();

            connect(play,&PlayScene::chooseSceneBack,[=](){
                this->show();
               delete play;
               play=NULL;
            });


        });

        QLabel * label=new QLabel;
        label->setParent(this);
        label->setFixedSize(menuBtn->width(),menuBtn->height());
        label->setText(QString::number(i+1));
        label->move(25+i%4*70,130+i/4*70);

        //设置label上的文字对齐方式 水平居中，垂直居中
        label->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
        //设置鼠标进行穿透
        label->setAttribute(Qt::WA_TransparentForMouseEvents);

    }

}
 void ChooseLevelScene::paintEvent(QPaintEvent *)
 {
   QPainter painter(this);
   QPixmap pix;
  //pix.load(":/res/OtherSceneBg.png");
   pix.load(":/res/secondbeijing.jpg");
   painter.drawPixmap(0,0,this->width(),this->height(),pix);

   //加载标题
   pix.load(":/res/Title.png");
   painter.drawPixmap((this->width()-pix.width())*0.5,30,pix.width(),pix.height(),pix);




 }
